12275878 has 8 divisors (see below), whose sum is σ = 18430272. Its totient is φ = 6132456.

The previous prime is 12275869. The next prime is 12275891. The reversal of 12275878 is 87857221.

12275878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12275878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (2303784).

Almost surely, 2^12275878 is an apocalyptic number.

12275878 is a deficient number, since it is larger than the sum of its proper divisors (6154394).

12275878 is a wasteful number, since it uses less digits than its factorization.

12275878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its digits is 62720, while the sum is 40.

The square root of 12275878 is about 3503.6949068091. The cubic root of 12275878 is about 230.6840254273.

The spelling of 12275878 in words is "twelve million, two hundred seventy-five thousand, eight hundred seventy-eight".